I am writing a story that is set in the Fourth World (metaphor meaning uncontracted people, hunter-gatherers, nomads, pastoral peoples, and some subsistence farming peoples, and sub-populations from First World countries who have the living standards of those from of Third World countries).
My people have a culture that is similar to Mexican Indigenous peoples.
They consider yellow to be the manliest colour, blue the second most masculine, and purple the third most boyish. At the opposite, for them, red is the womanliest colour, orange is the second most feminine, and green is the third most girly.
The colour symbolism is extremely varied from a culture to another, and even to an era to another.
For example, currently, red (especially pink) and blue (mostly navy blue) are respectively considered the most feminine colour and the most masculine colour in the Western World. However, some centuries ago, the roles were reversed.
In comparison, purple is mostly a feminine colour in the Western World (google Graceful Ladies Wear Purple), but a masculine one in Sub-Saharan Africa (google Purple is Powerful).
If green is considered an androgynous colour in the Western World, maybe a little bit more feminine because of the phrase Mother Nature (or as Francophones say Dame Nature) (I know that because I am a Quebecker with mostly French ancestors), in most other parts of the world including Sub-Saharan Africa, East Asia, and Polynesia, the trope Green is Girly is relatively common, and in the Muslim World, green is considered a symbol of religious power and is therefore the most masculine colour.
Orange is considered androgynous, maybe a little bit more masculine in the Western World because of the word Fatherland, but in Sub-Saharan Africa, orange is considered a boyish colour, and in South Asia, orange is considered a relatively womanly colour.
So, I wonder why would yellow be considered the most masculine colour in a human society. I ask because yellow is the colour of cowardice (the opposite of courage) (courage = masculine; cowardice = feminine).